Dual-Projector Display for Simultaneous Opposite-Side Viewing
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Solution Overview
Problem
Current display technologies do not effectively facilitate seamless communication and collaboration between individuals by allowing simultaneous viewing of images on both sides of a screen, particularly in environments where people are positioned on opposite sides of a display device.
Innovation Solution
A display device equipped with two ultra-short focus projectors and a sensor system that detects viewers on both sides of a screen, allowing for the projection of non-inverted images on both surfaces and dynamically controlling the projection based on viewer presence and interest levels, enabling natural communication between individuals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single projector is used to project images on a screen, then the device complexity is reduced, but the ability to simultaneously display images on both sides of the screen for viewers on opposite sides is lost
Solution Approach 1:
The display system is segmented into two independent projection paths: a first projector positioned to project onto a first surface of the screen, and a second projector positioned to project onto a second surface of the screen. This segmentation allows each projector to independently display images for viewers on opposite sides of the screen simultaneously, resolving the contradiction between simultaneous dual-side display capability and device complexity.
2Adaptability or versatility
If the screen displays images for viewers on one side, then the image quality for that side is optimized, but viewers on the opposite side cannot see the images clearly
Solution Approach 1:
Each projector is optimized for its specific viewing side: the first projector is positioned and configured to project images with optimal quality for viewers on the first side of the screen, while the second projector is positioned and configured to project images with optimal quality for viewers on the second side. This local quality approach ensures that both sides receive clear, accurate images simultaneously without compromising projection accuracy for either side.
3Ease of operation
If traditional display technology is used, then the structure is simple, but seamless communication and collaboration between individuals on opposite sides is not facilitated
Solution Approach 1:
The display system is designed with multi-functionality to facilitate communication and collaboration: it can simultaneously display different images for viewers on opposite sides, detect viewer presence using sensors, and switch between projection modes. This universal design enables the screen to serve as an interactive communication bridge rather than a simple barrier, improving ease of operation for collaboration while managing system complexity through integrated control.
Data Source
AI summary
A display device includes a screen, first and second projectors, a detector, and a controller. The screen has first and second surfaces. The first projector projects a first horizontally non-inverted image as viewed from the first surface. The second projector projects a second horizontally non-inverted image as viewed from the second surface. The detector detects a person viewing the first surface and a person viewing the second surface. The controller controls switching of an operation between the first and second projectors and also performs control, when the detector has detected a person viewing the first surface and a person viewing the second surface, so that the person viewing the first surface and the person viewing the second surface are able to see each other through the screen.